Room top pressure relief panel

Abstract

The invention provides a room top pressure relief panel which comprises an embedded part located in a floor slab at the top of a room and provided with an L-shaped bottom. The frame is fixed on the bottom of the embedded part through a countersunk head hexagon screw; a connecting block is fixed at one end of the valve plate, a lifting lug is fixed at the other end, and a handle is fixed above the valve plate; the shear pin assembly is fixed on the frame; the limiting assembly is used for being connected with the handle after the valve plate is opened and preventing the valve plate from being closed under the action of gravity after the valve plate is opened; the first bolt is used for fixing the hinge; wherein the connecting block is hinged with the frame through a hinge; the lifting lug is connected with the shear pin assembly through a shear pin. The problem that in the prior art, the working condition that leakage is not allowed within a certain pressure difference range of a pressurized water reactor nuclear power station room cannot be met is solved.

Description

technical field [0001] The invention belongs to the technical field of pressure relief valves, and relates to a pressure relief panel at the top of a room. Background technique [0002] At present, the most commonly used pressure relief valves in nuclear power ventilation systems are residual pressure valves and gravity pressure relief valves. These two valves are self-driven (gravity) closed, and the opening is automatically adjusted with the pressure fluctuation of the room or pipeline, which cannot meet the requirements. The working condition that leakage is not allowed within a certain range of pressure difference in the pressurized water reactor nuclear power plant room. Contents of the invention [0003] In order to achieve the above purpose, the embodiment of the present invention provides a pressure relief panel on the top of the room, which solves the problem that the existing technology cannot meet the working conditions that no leakage is allowed within a certai...

AI Technical Summary

Problems solved by technology

[0003] In order to achieve the above purpose, the embodiment of the present invention provides a pressure relief panel on the top of the room, which solves the problem that the existing technology cannot meet the working condition that no leakage is allowed within a certain pressure difference range of the room of the pressurized water reactor nuclear power plant

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